Spraying device



July 27 1926. 1,594,306

G.y J.v LENZ ET AL SPRAYING. DEVICE Filed Jan. 17, 1924 2 Shets-Sheet 1.

Je/zz EdT/loma July 27 1926.

G. J. LENZ ET'Ail,

sPRAYNG DEVICE Filed Jan` 17, 1924 2 sheets-sheya Patented July 27, 1926.

u siren stares SPRAYING DEVICE.

Application led January 17, 1924.

The invention relates to means for cleaning the traveling apron used in paper and pulp mills i'or gathering the pulp in the -formation ot a sheet of paper, and-consists of removable spray pipes disposed upon opposite sides of the apron and adapted to de* liver jets of water thereon, and means for imparting a reciprocating movement to the spray pipe to insure a distribution ot the water and prevent the apron from wearing in streaks.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

While the drawings illustrate an embodiment oi the invention it is to be understood that in adapting the same to meet diii'eren't conditions and requirements, various changes in the lorm, proportion and minor details of construction may be resorted to without departing from the spirit oi the invention.

Referring to the accompanying drawings forming a part of the application:

Figure 1 is an elevational view of a spraying device embodying the invention, the apron being shown in section,

Figure 2 is a section on the line 2 2 oi Figure 1,

Figure 3 is a side view of one of the spray pipes showing the same on a larger scale and having the intermediate portion broken away,

Figure 4f is an enlarged sectional view on the line 4-4 of Figure 3,

Figure 5 is a side view oi' the tubular strainer disposed within the spray pipe,

Figure 6 is a sectional view on the line GMG of Figure 4L,

Figure 7 is an elevational view of a centering and spacing ring for the tubular strainer, and

Figure 8 is a detail view of one unit of the spray pipe supporting and reciproca-ting means.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The numeral 1 designates the endless apron which may be either ot felt or wire fabric such as generally employed in paper and puln mills. The numeral 2 designates a spray pipe, one being disposed upon each side of the apron 1. Each of the spray pipes 2 is provided along the side facing the apron Serial No. 686,890.

1 with a plurality or" openings 5 for the discharge of water in jets, as indicated most clearly in Figures 1 and 6. The spray pipes are mounted to admit oi' a reciprocatory movement being imparted thereto whereby to prevent the jets of water from causing streaks on the apron 1, particularly when the latter is of telt. Any suitable means may be employed for supporting the spray pipes 2, and this means may, as shown in the drawings, comprise rollers 3 upon which the spray pipes are mounted and brackets 4 on which the rollers are journaled and which may be secured to any suitable part of the paper making machine. rlhe means for re- 5o ciprocating the spray pipes 2 may comprise a motor or motors ot any suitable type or the pipes may be reciprocated directly from any moving part of the machine. As shown in the drawings the pipe reciprocating means may comprise two hydraulic or other motors 6 of the reciprocating type and arms 6 secured to the spray pipes 2 and connected to the piston rods 6b of the motors. The motors 6 are as clearly illustrated in Figure 8 of the drawings, supported upon two of the brackets Ll.

A tubular strainer 7 is disposed within each of the spray pipes 2 and consists of a pipe provided in its sides with narrow slots 8 which are separated by intact circular portions 9 upon which are mounted centering and spacing rings 10 provided with outwardly disposed studs 11. These strainers are removably fitted within the spray pipes and for this purpose a cap 12 closes an end of each spray pipe and is detachable to admit ot removal of the strainer and replacement` thereof after being cleaned. A flexible pipe 13 supplies water to each or the spray pipes and may connect with a suitable source of supply. The pipes'13 are connected to the spray pipes 2 through the medium of couplings lll. rThe strainer removes gravel, trash and the like from the water and prevents choking of the discharge openings 5. The strainerI may be cleaned by flushing or by removing it from the spray pipe as occaslon may require.

lVhat is claimed is:

1. In combination with a pulp-receiving apron or the like, a spraying device operable to spray the apron, and means to impart bodily movement to the device incidental to sp 'aying to avoid streaking or' the apron, 110

said means being a motor deriving its power fluid from the same source as tbe spray.

2,'In combination With a pulp-receiving apron or the like, a. spray device therefor consisting of a tube, a oraminous strainer of less diameter Within the tube, said strainer having imperforate portions, spacing In testimony whereof We aix our signatures.

GEORGE J. LENZ. COMADORE J. THOMAS. 

